YOU SAID:
all I want for Christmas, is you
INTO JAPANESE
私がクリスマスに欲しいのは、あなた
BACK INTO ENGLISH
All I want for Christmas is you.
INTO JAPANESE
私がクリスマスに欲しいのはあなたです。
BACK INTO ENGLISH
All I want for Christmas is you.
That didn't even make that much sense in English.